AMERICAN VALVE Check Valve Brass 1-1/4-in Fnpt Swing Check Valve

2-3 PSI opening pressure. For pump and compressor discharge cooling towers, HVAC systems, pressure pumps, sump pumps, condensate line, boilers and other applications to prevent backflow. Install a minimum of 5 X pipe diameter down stream of any fitting that can cause turbulence. Integral seats. Threaded bonnet design.